Test run at: 2021-06-28 19:15:17 GMT
Client Prefix (v4): 45.165.177.x/24
Client AS (v4): 263067
IPv4 Probes: 66
Outbound spoofing summary (from the client to our server) Source address type IPv4 Private - RFC1918 rewritten Routable rewritten Largest spoofable neighbor prefix length none
Spoof status key received Spoofed packet was received. ✔ Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it. rewritten Spoofed packet was received, but the source address was changed en route. blocked Spoofed packet was not received, but unspoofed packet was. unknown Neither spoofed nor unspoofed packet was received.
Warnings:
IPv4 Adjacent Netblock Testing:
Your host (45.165.177.x/24) can spoof 0 neighboring addresses
Spoofed source address (anon) Prefix
LengthASN of spoofed
source addressReceived 45.165.177.x/24 /31 263067 rewritten 45.165.177.x/24 /30 263067 rewritten 45.165.177.x/24 /29 263067 rewritten 45.165.177.x/24 /28 263067 rewritten 45.165.177.x/24 /27 263067 rewritten 45.165.177.x/24 /26 263067 rewritten 45.165.177.x/24 /25 263067 rewritten 45.165.177.x/24 /24 263067 rewritten 45.165.176.x/24 /23 263067 rewritten 45.165.179.x/24 /22 263067 rewritten 45.165.181.x/24 /21 268694 rewritten 45.165.185.x/24 /20 268695 rewritten 45.165.161.x/24 /19 267961 rewritten 45.165.145.x/24 /18 268682 rewritten 45.165.241.x/24 /17 267980 rewritten 45.165.49.x/24 /16 268657 rewritten 45.164.177.x/24 /15 268645 rewritten 45.167.177.x/24 /14 265553 rewritten 45.161.177.x/24 /13 268470 rewritten 45.173.177.x/24 /12 268818 rewritten 45.181.177.x/24 /11 263099 rewritten 45.133.177.x/24 /10 61317 rewritten 45.229.177.x/24 /9 267131 rewritten 45.37.177.x/24 /8 11426 rewritten Meaning of status in Received column:
rewritten The source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.
IPv4 Outbound Filtering Depth:
The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.Feedback:
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